Home / 8,720,420,103.60-13,080,630,155.40-6,378,678,481.20

Finding the Fourth Proportional to 8,720,420,103.60, 13,080,630,155.40 and 6,378,678,481.20

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Solution

The fourth proportional to 8,720,420,103.60, 13,080,630,155.40 and 6,378,678,481.20 is: 9,568,017,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720,420,103.60 : 13,080,630,155.40 = 6,378,678,481.20 : x
  2. Step 2: Convert to fraction form
    8,720,420,103.60/13,080,630,155.40 = 6,378,678,481.20/x
  3. Step 3: Cross multiply
    8,720,420,103.60x = 13,080,630,155.40 × 6,378,678,481.20
  4. Step 4: Simplify right side
    8,720,420,103.60x = 83,437,134,092,785,795,072
  5. Step 5: Solve for x
    x = 83,437,134,092,785,795,072/8,720,420,103.60
  6. Step 6: Final answer
    x = 9,568,017,721.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.